<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type"/>
    <meta content="width=device-width, initial-scale=1.0, user-scalable=no" name="viewport"/>
    <title>首页</title>
    <style>
        .home {
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .home .home-bg {
            width: 70%;
        }
    </style>
</head>
<body>
<main id="app">
    <div class="home card">
        <img alt="welcome" class="home-bg" src="images/welcome.png"/>
    </div>
</main>
</body>
</html>